# io.github.cyanheads/noaa-climate-mcp-server (remote · noaa-climate.caseyjhand.com)

Search NOAA climate stations and datasets, fetch historical weather observations.

- Trust score: 70/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `noaa-climate.caseyjhand.com`: 70/100 (this document), [markdown](https://verifymcp.io/servers/cyanheads-noaa-climate-mcp-server/noaa-climate.md), [page](https://verifymcp.io/servers/cyanheads-noaa-climate-mcp-server/noaa-climate)
- npm · `@cyanheads/noaa-climate-mcp-server`: 35/100, [markdown](https://verifymcp.io/servers/cyanheads-noaa-climate-mcp-server/cyanheads-noaa-climate-mcp-server.md), [page](https://verifymcp.io/servers/cyanheads-noaa-climate-mcp-server/cyanheads-noaa-climate-mcp-server)

## Channel facts

- Endpoint: `https://noaa-climate.caseyjhand.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.2.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Endpoint Security**: 66/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 7 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC is configured correctly; the domain's records validate against the full chain to the root.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 75/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 3076 tokens (~384/item across 8 items; 7 tools + 1 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add --transport http cyanheads-noaa-climate-mcp-server https://noaa-climate.caseyjhand.com/mcp
```

### Codex

```toml
[mcp_servers.cyanheads-noaa-climate-mcp-server]
url = "https://noaa-climate.caseyjhand.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "cyanheads-noaa-climate-mcp-server": {
      "type": "remote",
      "url": "https://noaa-climate.caseyjhand.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add cyanheads-noaa-climate-mcp-server --url https://noaa-climate.caseyjhand.com/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  cyanheads-noaa-climate-mcp-server:
    url: "https://noaa-climate.caseyjhand.com/mcp"
```

### Other

```json
{
  "mcpServers": {
    "cyanheads-noaa-climate-mcp-server": {
      "type": "http",
      "url": "https://noaa-climate.caseyjhand.com/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-02 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-31 (score 69, +1)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 68, +1)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-28 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-27 (score 66, +1)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-26 (score 65)

First indexed and scored.

## MCP tools (7)

### `noaa_climate_list_datasets` (~345 tokens)

List NOAA Climate Datasets

List available NOAA CDO datasets with their IDs, names, and temporal coverage. Returns all ~11 datasets by default (no required parameters). Optionally filter to datasets that contain a specific data type, cover a location or station, or overlap a date range. Common datasets: GHCND (daily observations, 1763–present), GSOM (monthly summaries), GSOY (annual summaries), NORMAL_DLY/MLY/ANN/HLY (1981–2010 climate normals). Use this first to discover available datasets before calling noaa_climate_fetch_data.

Input parameters:

- `datatypeId` (array): Filter to datasets containing these data type IDs (e.g., ["TMAX", "PRCP"]). Optional.
- `endDate` (string): Filter to datasets with data on or before this ISO date (YYYY-MM-DD). Optional.
- `limit` (integer): Maximum number of results to return (1–1000). Defaults to 25.
- `locationId` (string): Filter to datasets covering this location ID (e.g., "FIPS:37" for NC). Optional.
- `offset` (integer): Zero-based index of the first result to return for pagination. Defaults to 0.
- `sortField` (string): Sort results by this field. Optional.
- `sortOrder` (string): Sort direction. Optional; defaults to asc.
- `startDate` (string): Filter to datasets with data on or after this ISO date (YYYY-MM-DD). Optional.
- `stationId` (string): Filter to datasets covering this station ID (e.g., "GHCND:USC00450974"). Optional.

Output parameters:

- `metadata` (object): Pagination metadata. Present when the API returns it.
- `notice` (string): Guidance when no datasets matched — echoes applied filters and suggests how to broaden.
- `results` (array): Matching datasets.
- `totalCount` (number): Total number of matching datasets before the page limit.

### `noaa_climate_list_data_categories` (~276 tokens)

List NOAA Climate Data Categories

List data categories that group related data types — Temperature, Precipitation, Wind, Pressure, Sunshine, Sky cover, Weather Type, and more. Use to discover what types of measurements are available before calling noaa_climate_list_data_types. Optionally filter by dataset, location, station, or date range. There are 42 categories in total.

Input parameters:

- `datasetId` (string): Filter to categories available in this dataset (e.g., "GHCND", "GSOM"). Optional.
- `endDate` (string): Filter to categories with data on or before this ISO date (YYYY-MM-DD). Optional.
- `limit` (integer): Maximum number of results to return (1–1000). Defaults to 25.
- `locationId` (string): Filter to categories available at this location ID. Optional.
- `offset` (integer): Zero-based index of the first result to return for pagination. Defaults to 0.
- `sortField` (string): Sort results by this field. Optional.
- `sortOrder` (string): Sort direction. Optional; defaults to asc.
- `startDate` (string): Filter to categories with data on or after this ISO date (YYYY-MM-DD). Optional.
- `stationId` (string): Filter to categories available at this station ID. Optional.

Output parameters:

- `metadata` (object): Pagination metadata. Present when the API returns it.
- `notice` (string): Guidance when no data categories matched — echoes applied filters and suggests how to broaden.
- `results` (array): Matching data categories.
- `totalCount` (number): Total number of matching data categories before the page limit.

### `noaa_climate_list_data_types` (~376 tokens)

List NOAA Climate Data Types

List available data types (measurement labels like TMAX, TMIN, PRCP, SNOW) for a given dataset or category. Pass a datasetId to see what is measured in that dataset, or a datacategoryId (e.g., "TEMP") to see all temperature-related types. Hundreds of types exist across all datasets. Use this before calling noaa_climate_fetch_data when the data type IDs are unknown. Common GHCND types: TMAX (max temperature), TMIN (min temperature), PRCP (precipitation), SNOW (snowfall), SNWD (snow depth), AWND (average wind speed).

Input parameters:

- `datacategoryId` (string): Filter to data types in this category (e.g., "TEMP" for temperature types, "PRCP" for precipitation). Optional.
- `datasetId` (string): Filter to data types available in this dataset (e.g., "GHCND", "GSOM"). Optional.
- `endDate` (string): Filter to data types with data on or before this ISO date (YYYY-MM-DD). Optional.
- `limit` (integer): Maximum number of results to return (1–1000). Defaults to 25.
- `locationId` (string): Filter to data types available at this location ID. Optional.
- `offset` (integer): Zero-based index of the first result to return for pagination. Defaults to 0.
- `sortField` (string): Sort results by this field. Optional.
- `sortOrder` (string): Sort direction. Optional; defaults to asc.
- `startDate` (string): Filter to data types with data on or after this ISO date (YYYY-MM-DD). Optional.
- `stationId` (string): Filter to data types available at this station ID. Optional.

Output parameters:

- `metadata` (object): Pagination metadata. Present when the API returns it.
- `notice` (string): Guidance when no data types matched — echoes applied filters and suggests how to broaden.
- `results` (array): Matching data types.
- `totalCount` (number): Total number of matching data types before the page limit.

### `noaa_climate_find_locations` (~474 tokens)

Find NOAA Climate Locations

Search for geographic locations by category (CITY, ST, CNTY, CNTRY, ZIP, CLIM_REG, etc.). Returns location IDs used in station search and data queries. Without locationCategoryId, returns all location types. Use locationCategoryId=ST to list US states (51 entries — small enough to retrieve completely). Use locationCategoryId=CITY for cities (thousands of entries — use pagination and sortField=name to navigate alphabetically). The CDO API has no name-search parameter; to find a specific city, sort alphabetically with sortField=name and page through results. Location IDs: states as FIPS:37 (NC), cities as CITY:US530031, zip codes as ZIP:98101, countries as CNTRY:US. Obtain location IDs here, then pass them to noaa_climate_find_stations or noaa_climate_fetch_data.

Input parameters:

- `datacategoryId` (string): Filter to locations with this data category (e.g., "TEMP"). Optional.
- `datasetId` (string): Filter to locations covered by this dataset (e.g., "GHCND"). Optional.
- `endDate` (string): Filter to locations with data on or before this ISO date (YYYY-MM-DD). Optional.
- `limit` (integer): Maximum number of results to return (1–1000). Defaults to 25.
- `locationCategoryId` (string): Category filter. Use ST for states (51 entries), CNTY for counties, CITY for cities (large set — thousands of entries), CNTRY for countries, ZIP for zip codes, CLIM_REG for NOAA climate regions, CLIM…
- `offset` (integer): Zero-based index of the first result to return for pagination. Defaults to 0.
- `sortField` (string): Sort results by this field. Use name with sortOrder=asc to browse alphabetically when searching for a specific city or location name. Optional.
- `sortOrder` (string): Sort direction. Optional; defaults to asc.
- `startDate` (string): Filter to locations with data on or after this ISO date (YYYY-MM-DD). Optional.

Output parameters:

- `metadata` (object): Pagination metadata. Present when the API returns it.
- `notice` (string): Guidance when no locations matched — echoes applied filters and suggests how to broaden.
- `results` (array): Matching locations.
- `totalCount` (number): Total number of matching locations before the page limit.

### `noaa_climate_find_stations` (~459 tokens)

Find NOAA Climate Stations

Search for weather observation stations by location, bounding box, dataset, and data type. Returns station IDs, names, coordinates, elevation, and data coverage dates. Filter by locationId (e.g., "FIPS:37" for all NC stations), extent (lat/lon bounding box), datasetId, datatypeId, and date range. Station IDs returned here are used as stationId in noaa_climate_fetch_data. A station must have data for the dataset and date range you want — filter by datasetId and startDate/endDate to ensure compatibility. Common station ID formats: GHCND:USC00450974, COOP:010008.

Input parameters:

- `datacategoryId` (string): Filter to stations with data in this category (e.g., "TEMP"). Optional.
- `datasetId` (string): Filter to stations that have data in this dataset (e.g., "GHCND" for daily observations). Optional.
- `datatypeId` (array): Filter to stations that record these data types (e.g., ["TMAX", "TMIN", "PRCP"]). Optional.
- `endDate` (string): Filter to stations with data on or before this ISO date (YYYY-MM-DD). Optional.
- `extent` (string): Bounding box filter as "minLat,minLon,maxLat,maxLon" (e.g., "47.5,-122.4,47.7,-122.1" for central Seattle). Optional.
- `limit` (integer): Maximum number of results to return (1–1000). Defaults to 25.
- `locationId` (string): Filter to stations within this location ID (e.g., "FIPS:37" for NC, "CITY:US530031" for Seattle). Obtain from noaa_climate_find_locations. Optional.
- `offset` (integer): Zero-based index of the first result to return for pagination. Defaults to 0.
- `sortField` (string): Sort results by this field. Optional.
- `sortOrder` (string): Sort direction. Optional; defaults to asc.
- `startDate` (string): Filter to stations with data on or after this ISO date (YYYY-MM-DD). Optional.

Output parameters:

- `metadata` (object): Pagination metadata. Present when the API returns it.
- `notice` (string): Guidance when no stations matched — echoes applied filters and suggests how to broaden.
- `results` (array): Matching stations.
- `totalCount` (number): Total number of matching stations before the page limit.

### `noaa_climate_get_station` (~136 tokens)

Get NOAA Climate Station

Fetch full metadata for a single weather station by its ID (e.g., "GHCND:USC00450974", "COOP:010008"). Returns name, coordinates, elevation, and the full date range for which data is available. Use when you have a station ID from noaa_climate_find_stations and want its complete details, or to verify a station before querying data.

Input parameters:

- `stationId` (string, required): Station ID to fetch (e.g., "GHCND:USC00450974", "COOP:010008"). Obtain from noaa_climate_find_stations.

Output parameters:

- `datacoverage` (number): Fractional data coverage (0–1). Omitted when not provided by the API.
- `elevation` (number): Station elevation. Unit depends on elevationUnit. Omitted when not provided.
- `elevationUnit` (string): Unit for elevation (e.g., "Meters"). Omitted when not provided.
- `id` (string): Station ID.
- `latitude` (number): Station latitude in decimal degrees. Omitted when not provided by the API.
- `longitude` (number): Station longitude in decimal degrees. Omitted when not provided by the API.
- `maxdate` (string): Latest date data is available at this station (YYYY-MM-DD). Omitted when not provided.
- `mindate` (string): Earliest date data is available at this station (YYYY-MM-DD). Omitted when not provided.
- `name` (string): Station name.

### `noaa_climate_fetch_data` (~806 tokens)

Fetch NOAA Climate Observation Data

Fetch historical observation records from a NOAA CDO dataset for a given date range. Requires datasetId (e.g., GHCND for daily, GSOM for monthly), startDate, and endDate. Optionally scope to specific stations, locations, and data types. Date range limits per request: sub-daily and daily datasets (GHCND, PRECIP_15, PRECIP_HLY, NORMAL_DLY, NORMAL_HLY) are limited to 1 year; monthly and annual datasets (GSOM, GSOY, NORMAL_MLY, NORMAL_ANN) are limited to 10 years. For climate normals (NORMAL_*), use startDate=2010-01-01 and endDate=2010-12-31 — that is the API proxy year regardless of which 30-year period is being described. Returns flat tuples of { date, datatype, station, value, attributes }. Strongly recommended: pass units=metric or units=standard — without it, GHCND values are raw tenths-of-unit integers (TMAX=256 = 25.6°C, PRCP=12 = 1.2mm). GSOM/GSOY are already scaled.

Input parameters:

- `datasetId` (string, required): Dataset ID to query (e.g., GHCND for daily data, GSOM for monthly, GSOY for annual, NORMAL_DLY/MLY/ANN/HLY for 1981–2010 climate normals). Determines date range limit: GHCND/PRECIP_*/NORMAL_DLY/NORMA…
- `datatypeId` (array): One or more data type IDs to include (e.g., ["TMAX", "TMIN", "PRCP"]). Without this, all data types for the dataset are returned. Use noaa_climate_list_data_types to discover valid IDs. Optional.
- `endDate` (string, required): End date for observations (YYYY-MM-DD). Must be within 1 year of startDate for sub-daily/daily datasets (GHCND, PRECIP_15, PRECIP_HLY, NORMAL_DLY, NORMAL_HLY) or within 10 years for monthly/annual da…
- `includemetadata` (boolean): Include pagination metadata in the response. Defaults to true.
- `limit` (integer): Maximum number of records to return (1–1000). Defaults to 25.
- `locationId` (array): One or more location IDs to filter by (e.g., ["FIPS:37", "ZIP:98101"]). Broader than stationId — returns data from all stations within the location. Optional.
- `offset` (integer): Zero-based index of the first record to return for pagination. Defaults to 0.
- `sortField` (string): Sort results by this field. Optional.
- `sortOrder` (string): Sort direction. Optional; defaults to asc.
- `startDate` (string, required): Start date for observations (YYYY-MM-DD). For NORMAL_* datasets use 2010-01-01 regardless of the years being analyzed — 2010 is the API proxy year for all normals.
- `stationId` (array): One or more station IDs to filter by (e.g., ["GHCND:USC00450974"]). Obtain from noaa_climate_find_stations. Multiple IDs return comparative readings across stations. Optional.
- `units` (string): Unit system for returned values. Without this parameter, GHCND returns raw tenths-of-unit integers (TMAX=256 = 25.6°C). Strongly recommended: pass metric (SI units) or standard (Fahrenheit/inches). O…

Output parameters:

- `effectiveQuery` (string): Summary of the effective query: dataset, date range, units, and any station/location/datatype filters applied.
- `metadata` (object): Pagination metadata. Present when includemetadata=true.
- `notice` (string): Guidance when no records were returned — echoes query parameters and suggests how to broaden.
- `results` (array): Flat array of observation records sorted by date by default.
- `totalCount` (number): Total number of matching observation records before the page limit.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/cyanheads-noaa-climate-mcp-server/noaa-climate#diagnostics

## Score history

- 2026-08-03: 70
- 2026-08-02: 70
- 2026-08-01: 69
- 2026-07-31: 69
- 2026-07-30: 68
- 2026-07-29: 67
- 2026-07-28: 67
- 2026-07-27: 66
- 2026-07-26: 65

## Links

- Remote endpoint: https://noaa-climate.caseyjhand.com/mcp
- Repository: https://github.com/cyanheads/noaa-climate-mcp-server
- Changelog RSS feed: https://verifymcp.io/servers/cyanheads-noaa-climate-mcp-server/noaa-climate/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/cyanheads-noaa-climate-mcp-server/noaa-climate/changelog.json
- HTML version of this page: https://verifymcp.io/servers/cyanheads-noaa-climate-mcp-server/noaa-climate